Press Felt for Papermaking
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United States of America Patent
Stats
-
N/A
Issued Date -
Jan 22, 2009
app pub date -
Dec 28, 2006
filing date -
Jan 6, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A press felt comprises a base body, a wet paper web side batt layer, and a press side batt layer. The wet paper web side batt layer includes a web contact side batt layer and a base body side batt layer, the latter being composed of core-in-sheath fibers with a core of high molecular weight nylon with an absolute viscosity of 80 mPa·s or more and a sheath of nylon with a lower melting point than the core. The wet paper web contact side batt layer is made of nylon fibers which are not core-in-sheath fibers.
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